Finding the Third Proportional to 281,644.50 and 626,259

Step by Step Solution

1. Step 1: Write the proportion equation
   281,644.50 : 626,259 = 626,259 : x
2. Step 2: Convert to fraction form
   281,644.50/626,259 = 626,259/x
3. Step 3: Cross multiply
   281,644.50x = 626,259 × 626,259
4. Step 4: Simplify right side
   281,644.50x = 392,200,335,081
5. Step 5: Solve for x
   x = 392,200,335,081/281,644.50
6. Step 6: Final answer
   x = 1,392,536.82